in order to study the effects of different nutrition systems (organic, chemical and integrated) and biofertilizer (pgpr) on phenology period, grain yield and its component in sunflower (helianthus annuus l.) an experiment was conducted using alestar cultivar at the research farm of college of agriculture, tarbiat modares university in 2007. five levels of nutrition systems including f1 (100% or...

Nowadays, developing an integrated energy system (IES) is considered as effective pattern to improve efficiency and reduce supply costs. This study proposes a new index—convertibility index (CI)—to quantitatively assess the flexibility of IES regarding conversion processes between different flow types. Based on CI constraint, planning problem modeled bi-level optimization problem. To solve prop...